Day 3 of using BAC from Amazon, Aqua Science, still alive. No burning, redness etc.
On a serious note, I agree the points made here against ordering from Amazon are valid ones. I did order Hospira afterwards, still decided to give a try to the ones from Amazon at my own risk. At least the company has been in business for a long time, has physical presence in Ohio, has webstite, own store, contact info
The risk I was taking is hard to quantify, cases of bad product from Amazon are widely publicized, spread exponentially in various threads, while I suspect those with uneventful outcomes like mine aren't widely shared. So there is some statistical bias here.